The NVMe 2.5" U.2 SSD PCIe adapter is a PCIe 4X add-on-card with a 68-pin SFF-8639 female connector on board to directly connect a NVMe 2.5" U.2 SSD to a PCIe 4-lane slot. No cables are needed. It is a simple solution for installing the U.2 SSD into desktop or server equipment.

The SFF-8643 PCIe 4X adapter is designed for connecting the high performance 2.5" NVMe U.2 (SFF-8639) SSD to a PCIe 4-lane slot in a system via a SFF-8643 cable, which allows installation of U.2 SSDs into various types of drive bays. The adapter is a flexible solution for installing NVMe U.2 SSDs into standard height or low profile systems.

The M2 SFF-8643 converter is a small adapter that is designed to install into a M2 PCIe SSD socket and turn it into a SFF-8643 connector. This converter enables the NVMe 2.5" U.2 SSD to be attached to the system PCI BUS via a M2 PCIe SSD socket using the SFF-8639 to SFF-8643 cable.

Addonics NVMe (Non-Volatile Memory Express) adapters and converters all use PCI Express lanes to transmit data, providing speeds well in excess of SATA. Most SSDs have peak bandwidth well above what SATA can handle. This gives flash devices a huge performance boost so they can deliver their full potential and no longer be slowed down by a storage stack, which was primarily designed for slow spinning disks.